Head-mounted Glasses With Light Magnifying Glass Jewelry Watch Repair Magnifying Glass 10 Times 15 Times 20 Times 25 Times 1 SetUtilities: Install two left and right magnifying eyecups with LEDs on the eyeglass frame. Each eyecup comes with four different magnification tubes. You can choose a suitable magnifying tube according to the size of the object being observed. Tips: If you need to work with this magnifying glass for a long time, you can use the two lens barrels alternately to eliminate visual fatigue and improve work efficiency. Product advantages: The LED lamp head and the battery compartment of the control switch are designed separately, which is beneficial to not change the illumination point of the light source during operation, and there is no need to recalibrate the illumination point during repeated use. Simple operation: the switch operation is very simple. Turn the battery cover from the small point about 40 in the CW direction to the indicator symbol. At this time, the LED light source is turned on, and the CCW light source is turned off. Convenient battery replacement: It is very convenient to replace the battery. Press and hold the switch. Turn the battery cover 30 counterclockwise to the left. The battery cover will pop out on its own. Then remove the three LR1130 batteries and replace with a new LR1130 battery with a negative pole, battery (not included)Product multiples: 10X (2 pieces) 15X (2 pieces) 20X (2 pieces) 25X (2 pieces) {4 groups of lenses can be replaced} Lens diameter: 16mmNote, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm errorQuantity: (1 set) head-mounted magnifying glass, other products are not includedSize: 16x14x4cm (for reference only)Color as shown